309 lines
9.6 KiB
C
309 lines
9.6 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// vid.h -- video driver defs
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#ifndef VID_H
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#define VID_H
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#define ENGINE_ICON ( (gamemode == GAME_NEXUIZ) ? nexuiz_xpm : darkplaces_xpm )
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extern int cl_available;
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#define MAX_TEXTUREUNITS 32
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typedef enum renderpath_e
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{
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RENDERPATH_GL11,
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RENDERPATH_GL13,
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RENDERPATH_GL20,
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RENDERPATH_D3D9,
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RENDERPATH_D3D10,
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RENDERPATH_D3D11,
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RENDERPATH_SOFT,
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RENDERPATH_GLES1,
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RENDERPATH_GLES2
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}
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renderpath_t;
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typedef struct viddef_support_s
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{
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qboolean gl20shaders;
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qboolean gl20shaders130; // indicates glBindFragDataLocation is available
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int glshaderversion; // typical values: 100 110 120 130 140 ...
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qboolean amd_texture_texture4;
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qboolean arb_depth_texture;
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qboolean arb_draw_buffers;
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qboolean arb_framebuffer_object;
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qboolean arb_multitexture;
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qboolean arb_occlusion_query;
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qboolean arb_shadow;
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qboolean arb_texture_compression;
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qboolean arb_texture_cube_map;
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qboolean arb_texture_env_combine;
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qboolean arb_texture_gather;
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qboolean arb_texture_non_power_of_two;
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qboolean arb_vertex_buffer_object;
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qboolean arb_uniform_buffer_object;
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qboolean ati_separate_stencil;
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qboolean ext_blend_minmax;
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qboolean ext_blend_subtract;
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qboolean ext_blend_func_separate;
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qboolean ext_draw_range_elements;
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qboolean ext_framebuffer_object;
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qboolean ext_packed_depth_stencil;
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qboolean ext_stencil_two_side;
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qboolean ext_texture_3d;
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qboolean ext_texture_compression_s3tc;
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qboolean ext_texture_edge_clamp;
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qboolean ext_texture_filter_anisotropic;
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qboolean ext_texture_srgb;
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qboolean arb_multisample;
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}
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viddef_support_t;
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typedef struct viddef_mode_s
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{
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int width;
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int height;
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int bitsperpixel;
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qboolean fullscreen;
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float refreshrate;
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qboolean userefreshrate;
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qboolean stereobuffer;
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int samples;
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}
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viddef_mode_t;
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typedef struct viddef_s
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{
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// these are set by VID_Mode
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viddef_mode_t mode;
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// used in many locations in the renderer
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int width;
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int height;
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int bitsperpixel;
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qboolean fullscreen;
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float refreshrate;
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qboolean userefreshrate;
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qboolean stereobuffer;
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int samples;
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qboolean stencil;
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qboolean sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
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qboolean sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
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qboolean sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath, v_hwgamma)
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qboolean sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath, v_hwgamma)
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renderpath_t renderpath;
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qboolean forcevbo; // some renderpaths can not operate without it
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qboolean useinterleavedarrays; // required by some renderpaths
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qboolean allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
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unsigned int texunits;
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unsigned int teximageunits;
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unsigned int texarrayunits;
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unsigned int drawrangeelements_maxvertices;
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unsigned int drawrangeelements_maxindices;
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unsigned int maxtexturesize_2d;
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unsigned int maxtexturesize_3d;
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unsigned int maxtexturesize_cubemap;
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unsigned int max_anisotropy;
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unsigned int maxdrawbuffers;
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viddef_support_t support;
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// in RENDERPATH_SOFT this is a 32bpp native-endian ARGB framebuffer
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// (native-endian ARGB meaning that in little endian it is BGRA bytes,
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// in big endian it is ARGB byte order, the format is converted during
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// blit to the window)
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unsigned int *softpixels;
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unsigned int *softdepthpixels;
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int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
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} viddef_t;
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// global video state
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extern viddef_t vid;
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extern void (*vid_menudrawfn)(void);
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extern void (*vid_menukeyfn)(int key);
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#define MAXJOYAXIS 16
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// if this is changed, the corresponding code in vid_shared.c must be updated
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#define MAXJOYBUTTON 36
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typedef struct vid_joystate_s
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{
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float axis[MAXJOYAXIS]; // -1 to +1
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unsigned char button[MAXJOYBUTTON]; // 0 or 1
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qboolean is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
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}
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vid_joystate_t;
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extern vid_joystate_t vid_joystate;
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extern cvar_t joy_index;
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extern cvar_t joy_enable;
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extern cvar_t joy_detected;
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extern cvar_t joy_active;
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float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
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void VID_ApplyJoyState(vid_joystate_t *joystate);
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void VID_BuildJoyState(vid_joystate_t *joystate);
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void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
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void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
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int VID_Shared_SetJoystick(int index);
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qboolean VID_JoyBlockEmulatedKeys(int keycode);
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void VID_EnableJoystick(qboolean enable);
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extern qboolean vid_hidden;
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extern qboolean vid_activewindow;
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extern cvar_t vid_hardwaregammasupported;
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extern qboolean vid_usinghwgamma;
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extern qboolean vid_supportrefreshrate;
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extern cvar_t vid_soft;
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extern cvar_t vid_soft_threads;
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extern cvar_t vid_soft_interlace;
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extern cvar_t vid_fullscreen;
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extern cvar_t vid_width;
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extern cvar_t vid_height;
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extern cvar_t vid_bitsperpixel;
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extern cvar_t vid_samples;
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extern cvar_t vid_refreshrate;
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extern cvar_t vid_userefreshrate;
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extern cvar_t vid_touchscreen_density;
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extern cvar_t vid_touchscreen_xdpi;
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extern cvar_t vid_touchscreen_ydpi;
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extern cvar_t vid_vsync;
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extern cvar_t vid_mouse;
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extern cvar_t vid_grabkeyboard;
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extern cvar_t vid_touchscreen;
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extern cvar_t vid_touchscreen_showkeyboard;
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extern cvar_t vid_touchscreen_supportshowkeyboard;
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extern cvar_t vid_stick_mouse;
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extern cvar_t vid_resizable;
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extern cvar_t vid_desktopfullscreen;
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extern cvar_t vid_minwidth;
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extern cvar_t vid_minheight;
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extern cvar_t vid_sRGB;
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extern cvar_t vid_sRGB_fallback;
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extern cvar_t gl_finish;
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extern cvar_t v_gamma;
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extern cvar_t v_contrast;
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extern cvar_t v_brightness;
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extern cvar_t v_color_enable;
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extern cvar_t v_color_black_r;
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extern cvar_t v_color_black_g;
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extern cvar_t v_color_black_b;
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extern cvar_t v_color_grey_r;
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extern cvar_t v_color_grey_g;
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extern cvar_t v_color_grey_b;
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extern cvar_t v_color_white_r;
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extern cvar_t v_color_white_g;
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extern cvar_t v_color_white_b;
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extern cvar_t v_hwgamma;
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// brand of graphics chip
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extern const char *gl_vendor;
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// graphics chip model and other information
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extern const char *gl_renderer;
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// begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
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extern const char *gl_version;
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// extensions list, space separated
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extern const char *gl_extensions;
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// WGL, GLX, or AGL
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extern const char *gl_platform;
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// another extensions list, containing platform-specific extensions that are
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// not in the main list
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extern const char *gl_platformextensions;
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// name of driver library (opengl32.dll, libGL.so.1, or whatever)
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extern char gl_driver[256];
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void *GL_GetProcAddress(const char *name);
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qboolean GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent);
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void VID_Shared_Init(void);
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void GL_Init (void);
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void VID_ClearExtensions(void);
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void VID_CheckExtensions(void);
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void VID_Init (void);
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// Called at startup
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void VID_Shutdown (void);
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// Called at shutdown
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int VID_SetMode (int modenum);
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// sets the mode; only used by the Quake engine for resetting to mode 0 (the
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// base mode) on memory allocation failures
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qboolean VID_InitMode(viddef_mode_t *mode);
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// allocates and opens an appropriate OpenGL context (and its window)
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// sets hardware gamma correction, returns false if the device does not
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// support gamma control
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// (ONLY called by VID_UpdateGamma and VID_RestoreSystemGamma)
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int VID_SetGamma(unsigned short *ramps, int rampsize);
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// gets hardware gamma correction, returns false if the device does not
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// support gamma control
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// (ONLY called by VID_UpdateGamma and VID_RestoreSystemGamma)
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int VID_GetGamma(unsigned short *ramps, int rampsize);
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// makes sure ramp arrays are big enough and calls VID_GetGamma/VID_SetGamma
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// (ONLY to be called from VID_Finish!)
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void VID_UpdateGamma(qboolean force, int rampsize);
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// turns off hardware gamma ramps immediately
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// (called from various shutdown/deactivation functions)
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void VID_RestoreSystemGamma(void);
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qboolean VID_HasScreenKeyboardSupport(void);
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void VID_ShowKeyboard(qboolean show);
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qboolean VID_ShowingKeyboard(void);
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void VID_SetMouse (qboolean fullscreengrab, qboolean relative, qboolean hidecursor);
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void VID_Finish (void);
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void VID_Restart_f(void);
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void VID_Start(void);
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void VID_Stop(void);
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extern unsigned int vid_gammatables_serial; // so other subsystems can poll if gamma parameters have changed; this starts with 0 and gets increased by 1 each time the gamma parameters get changed and VID_BuildGammaTables should be called again
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extern qboolean vid_gammatables_trivial; // this is set to true if all color control values are at default setting, and it therefore would make no sense to use the gamma table
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void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
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typedef struct
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{
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int width, height, bpp, refreshrate;
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int pixelheight_num, pixelheight_denom;
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}
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vid_mode_t;
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vid_mode_t *VID_GetDesktopMode(void);
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size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
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size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect);
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void VID_Soft_SharedSetup(void);
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#endif
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